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Full Discussion: Date derivation
Top Forums Shell Programming and Scripting Date derivation Post 302770085 by help_scr_seeker on Thursday 14th of February 2013 11:44:23 AM
Old 02-14-2013
Code:
use strict;
use warnings;
use DateTime;
my $d = DateTime->now;
while ( $d->day_of_week != 6 ) {
    $d->subtract( days => 1 );
        }
        print $d->ymd;

I developed this code in perl. Unfortunately, the perl modules is not installed in the client server. So unable to use that :-(

I need some help in shell scripting.
 

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LEARN ABOUT OSX

datetime::leapsecond

DateTime::LeapSecond(3) 				User Contributed Perl Documentation				   DateTime::LeapSecond(3)

NAME

       DateTime::LeapSecond - leap seconds table and utilities

VERSION

       version 0.77

SYNOPSIS

	 use DateTime;
	 use DateTime::LeapSecond;

	 print "Leap seconds between years 1990 and 2000 are ";
	 print DateTime::Leapsecond::leap_seconds( $utc_rd_2000 ) -
	       DateTime::Leapsecond::leap_seconds( $utc_rd_1990 );

DESCRIPTION

       This module is used to calculate leap seconds for a given Rata Die day. It is used when DateTime.pm cannot compile the XS version of this
       code.

       This library is known to be accurate for dates until December 2009.

       There are no leap seconds before 1972, because that's the year this system was implemented.

       o   leap_seconds( $rd )

	   Returns the number of accumulated leap seconds for a given day, in the range 0 .. 22.

       o   extra_seconds( $rd )

	   Returns the number of leap seconds for a given day, in the range -2 .. 2.

       o   day_length( $rd )

	   Returns the number of seconds for a given day, in the range 86398 .. 86402.

SEE ALSO

       <http://hpiers.obspm.fr/eop-pc/earthor/utc/leapsecond.html>

       http://datetime.perl.org

AUTHOR

       Dave Rolsky <autarch@urth.org>

COPYRIGHT AND LICENSE

       This software is Copyright (c) 2012 by Dave Rolsky.

       This is free software, licensed under:

	 The Artistic License 2.0 (GPL Compatible)

perl v5.16.2							    2013-08-25						   DateTime::LeapSecond(3)
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